/*
 * This file Copyright (c) 2015. Walle.
 * (http://www.wallellen.com). All rights reserved.
 *
 *
 * This file is dual-licensed under both the
 * Walle Agreement (WA) and the GNU General Public License.
 * You may elect to use one or the other of these licenses.
 *
 * This file is distributed in the hope that it will be
 * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
 * implied warranty of MERCHANTABILITY or FITNESS FOR A
 * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
 * Redistribution, except as permitted by whichever of the GPL
 * or WA you select, is prohibited.
 *
 * 1. For the GPL license (GPL), you can redistribute and/or
 * modify this file under the terms of the GNU General
 * Public License, Version 3, as published by the Free Software
 * Foundation.  You should have received a copy of the GNU
 * General Public License, Version 3 along with this program;
 * if not, write to the Free Software Foundation, Inc., 51
 * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * 2. For the Walle Agreement (WA), this file
 * and the accompanying materials are made available under the
 * terms of the WA which accompanies this distribution, and
 * is available at http://www.wallellen.com/agreement.html
 *
 *
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
 */

package com.wallellen.web.tag;


import com.wallellen.core.auth.domain.LoginUser;
import com.wallellen.parameter.ParamService;
import com.wallellen.web.constant.Constant;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.jsp.JspException;
import javax.servlet.jsp.tagext.TagSupport;

public class ParameterEqualsTaget extends TagSupport {
    /**
     *
     */
    private static final long serialVersionUID = 1L;
    static final Logger log = LoggerFactory.getLogger(ParameterEqualsTaget.class);
    private String key;
    private String val;

    @Override
    public int doEndTag() throws JspException {
        return EVAL_PAGE;
    }

    @Override
    public int doStartTag() throws JspException {
        HttpServletRequest request = (HttpServletRequest) pageContext
                .getRequest();
        String pval = null;
        LoginUser user = (LoginUser) request.getSession().getAttribute(
                Constant.SESSION_USEROBJ);
        if (user == null) {
            pval = ParamService.getInstance().getParameter(key);
        } else {
            pval = ParamService.getInstance().getParameter(key,
                    user.getId());
        }
        // 显示
        if (pval != null && pval.equals(val)) {
            return EVAL_BODY_INCLUDE;
        }
        return SKIP_BODY;
    }

    public String getKey() {
        return key;
    }

    public void setKey(String key) {
        this.key = key;
    }

    public String getVal() {
        return val;
    }

    public void setVal(String val) {
        this.val = val;
    }

}
